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Synthesis of a Tweezer-like Bis(phenylthiapropoxy)calix[4]-arene as a Cation/π Enhanced Sensor for Ion-Selective Electrodes

Synthesis of a Tweezer-like Bis(phenylthiapropoxy)calix[4]-arene as a Cation/π Enhanced Sensor for Ion-Selective Electrodes
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摘要 Two novel 25,27-dihydroxy-26,28-bis(3-phenylthiapropoxy)-calixarene (3) and 25,27-dihydroxy-26,28-bis(3-phenylthia-propoxy)-5,11,17,23-tetra-tert-butylcalixarene (4) were synthesized for the evaluation of their ion-selectivity in ion-selective electrodes (ISEs). ISEs based on 3 and 4 as neutral ionophores were prepared, and their selectivity coefficients for Ag + (lg K pot Ag,M) were investigated against other alkali metal, alkaline-earth metal, aluminum, thallium (I), lead and some transition metal ions using the separate solution method (SSM). These ISEs showed excellent Ag + selectivity over most of the interfering cations examined, except for Hg 2+ and Fe 2+ having relative smaller interference (lg K pot Ag,M≤-2.1). Two novel 25,27-dihydroxy-26,28-bis(3-phenylthiapropoxy)-calixarene (3) and 25,27-dihydroxy-26,28-bis(3-phenylthia-propoxy)-5,11,17,23-tetra-tert-butylcalixarene (4) were synthesized for the evaluation of their ion-selectivity in ion-selective electrodes (ISEs). ISEs based on 3 and 4 as neutral ionophores were prepared, and their selectivity coefficients for Ag + (lg K pot Ag,M) were investigated against other alkali metal, alkaline-earth metal, aluminum, thallium (I), lead and some transition metal ions using the separate solution method (SSM). These ISEs showed excellent Ag + selectivity over most of the interfering cations examined, except for Hg 2+ and Fe 2+ having relative smaller interference (lg K pot Ag,M≤-2.1).
出处 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2002年第10期1109-1114,共6页 中国化学(英文版)
基金 ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No.2 0 10 2 0 0 3)andthefoundationofNankaiUniversity
关键词 CALIXARENES synthesis silver selectivity ion-selective electrode calixarenes, synthesis, silver selectivity, ion-selective electrode
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参考文献11

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